nanocore | 1d0128fd3184a765076397dd308e51bbc578a3639cb9c08ab6b5c36704d772b4

Resubmissions

14-11-2023 17:31

231114-v3qg7acf42 10

14-11-2023 17:21

28-10-2023 19:29

24-10-2023 13:29

18-10-2023 12:04

07-09-2023 12:10

Analysis

max time kernel
598s
max time network
605s
platform
windows10-2004_x64
resource
win10v2004-20231020-en
resource tags

arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-x64system
submitted
24-10-2023 13:29

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General

Target

ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe
Size

564KB
MD5

bdfc510bad54e411a0e5ed3d479fdecd
SHA1

3f4fc2f5ec18d2205dffdc1bd3c27b0416cc7bb1
SHA256

ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659
SHA512

544248ae466c36eed4ee5803863527212897aa71ca80e7f2cf5da494c25e26254e6266b951e3bfe3be305b74de806d229c338d9bb2790e7b974656d9c3ddb89c
SSDEEP

12288:auoRx16X8AQpbnQusfrSytqtFtALqP4vAvQHv:aXRx16X8HwFtqtFtmqPs

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Signatures

NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
keylogger trojan stealer spyware nanocore

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\SMTP Host = "C:\\Program Files (x86)\\SMTP Host\\smtphost.exe"	ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs

pid	Process
1084	ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe
4972	ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe
4972	ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1084 set thread context of 4972	1084	ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe	90

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\SMTP Host\smtphost.exe	ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe
File opened for modification	C:\Program Files (x86)\SMTP Host\smtphost.exe	ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe

Creates scheduled task(s) 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
920	schtasks.exe
1116	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4972	ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe
4972	ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe
4972	ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4972	ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4972	ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1084	ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1084 wrote to memory of 4972	1084	ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe	90
PID 1084 wrote to memory of 4972	1084	ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe	90
PID 1084 wrote to memory of 4972	1084	ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe	90
PID 4972 wrote to memory of 920	4972	ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe	91
PID 4972 wrote to memory of 920	4972	ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe	91
PID 4972 wrote to memory of 920	4972	ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe	91
PID 4972 wrote to memory of 1116	4972	ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe	93
PID 4972 wrote to memory of 1116	4972	ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe	93
PID 4972 wrote to memory of 1116	4972	ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe	93

C:\Users\Admin\AppData\Local\Temp\ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe
"C:\Users\Admin\AppData\Local\Temp\ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe"
1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1084
- C:\Users\Admin\AppData\Local\Temp\ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe
  "C:\Users\Admin\AppData\Local\Temp\ea55e146fed653416bd40c92ce89cd61b46035c7bc6f55a33c71a9872e2c9659.exe"
  2⤵
  - Adds Run key to start application
  - Checks whether UAC is enabled
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Drops file in Program Files directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4972
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "SMTP Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmpB74A.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:920
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "SMTP Host Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpB8A2.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:1116

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpB74A.tmp

Filesize
1KB

MD5
9ddbb35913a67b23d3996e65b7e41215

SHA1
1065fddd93b1eaf76f862b8c838b1ceeed5f36ed

SHA256
9068f833bbe3d10eeeb3eaf5c48b94cc19839c3f264c98b3b7b569d39650a9bb

SHA512
80def92e34309a60f641c7b9632dbc9c7bdc63d9377da4cfafe1a5dc5a5b7c22824246eb75c30349ab046c143e848d2f103e14203ca29c5c4b54c56ebcf2399c

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpB8A2.tmp

Filesize
1KB

MD5
be81f72fa4dbc827132836ee2af92c96

SHA1
fe5ded04ab4932dea6cf414e9e4428f43da70d03

SHA256
bb9181b3935b8681a71b578f8166883e61380de6181df82d05f14829323fbf0f

SHA512
6abd5a844ab0204d3a803083e71a5d7097b5e85f46d9f80fefa8d06ff8fda11a7d9253d6cf2d51ad8932c1b27fc7cf6fbfc6e95dce75bfe43bf995e71b40e30e

Download Submit
memory/1084-2-0x0000000002A80000-0x0000000002A8E000-memory.dmp

Filesize
56KB

Download
memory/1084-3-0x00000000778C1000-0x00000000779E1000-memory.dmp

Filesize
1.1MB

Download
memory/1084-4-0x0000000002A80000-0x0000000002A8E000-memory.dmp

Filesize
56KB

Download
memory/1084-5-0x00000000778C1000-0x00000000779E1000-memory.dmp

Filesize
1.1MB

Download
memory/4972-10-0x0000000000180000-0x0000000000190000-memory.dmp

Filesize
64KB

Download
memory/4972-9-0x0000000000180000-0x0000000000190000-memory.dmp

Filesize
64KB

Download
memory/4972-8-0x0000000074F30000-0x00000000754E1000-memory.dmp

Filesize
5.7MB

Download
memory/4972-11-0x0000000000180000-0x0000000000190000-memory.dmp

Filesize
64KB

Download
memory/4972-7-0x0000000074F30000-0x00000000754E1000-memory.dmp

Filesize
5.7MB

Download
memory/4972-6-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/4972-19-0x00000000020A0000-0x00000000020AE000-memory.dmp

Filesize
56KB

Download
memory/4972-20-0x0000000074F30000-0x00000000754E1000-memory.dmp

Filesize
5.7MB

Download
memory/4972-22-0x0000000000180000-0x0000000000190000-memory.dmp

Filesize
64KB

Download
memory/4972-23-0x0000000000180000-0x0000000000190000-memory.dmp

Filesize
64KB

Download